Burglar trap



y 30, 1929- v. E. DAVIDSON 1,722,457

' sunema TRAP Filed Oct. 14,1926

INVENTOR. M ma 5 avidson.

ATTORNEY. I

Patented July 30,1929.

UNITED STATES ATE vEnNA n. DAVIDSON, or nnrnorr, MICHIGAN.

.nunernn TRAP.

Application filed october 14, 1926. Serial No. 141,481.

My invention relates to anew and useful termediate its ends, is a tube19. The tube improvement in a burglar trap adapted for mounting uponbuildings, particularly banks and the like, in which large sums of moneyor other valuables are present so that in the event of robbery those incharge in the building may operate the mechanism whereby the escape ofthe robbers or bandits may be prevented, while at the same time, theoccupants of the building may be shielded from harm at the hands of therobbers. I It is an object of the invention to provide particularly adoor closing mechanism whereby the door of the building and a 1shielding door may be moved to closed position and held locked in closedposition.

7 It is another object of the invention to providea mechanism-of thisclass which will be simple of structure, economical of manu- .facture,highly efficient in use, easily and quickly installed, and simple andpositive in its operation. v 7

Other objects will appear hereinafter. The invention consists in thecombination and arrangement of parts hereinafter described and claimed.I

The invention will be best understood by a reference to the accompanyingdrawings which form a part of this specification and in which,

' Fig. 1 is a fragmentary sectional view of a building showing theinvention applied with parts broken away, parts in sideelevation, andparts in section.

Fig. 2 is a fragmentary sectional view taken on substantially line-22 ofFig. -1.

Fig. 3 is a vertical sectional view of a window shielding mechanism.

Fig. 4 is a sectional viewtaken on substantially line 44 of Fig. 3.

opening 13. A partition14 is shown dividing the room of the buildinginto compart 'ments, a mouth piece 15 beingmounted in the partition 14and a slide 16 being formed for a closure for the-opening 17. Projectedthrough the partition 14 and lying parallel I to and spaced below theceiling 10 is a tube V a 18, projecting downwardly from which, in-

Fig. 5 is a perspective View of the rockable 7 1S communicates atone endwith a-housing 20 into which extends guide tube 21, slidably positionedin which is a weight 22 connecting by a cord 23 to a cord 24whichpa-sses over a pulley 25 mounted in the housing 20 and connected tocord 26 which passes over the' pulley 27 mounted in the housing20. Acord 26 extends through the opening 28 in the floor and around thepulley 29 engaging the pulley 30,,and the pulley 31 passing upwardlythroughthe o i 32 -M the floor 9- and extending around the drum whlch issuitably rotatably mounted behind the. partition 14 and above the floor9.

The cord 26 may be attached at its ends to the drum 33 so that arotation of the drum 33 m one direction will effecta winding of thecordthereon, and a rotation of the drum in the opposite direction willeflect an unwind- 'ing of the same. Secured at one end to the drum 33 soastobe wound or unwoundthereon and therefrom'upon rotation of thesame 1sa cord 34 which extends around the pulley 35 and throughthe tube 18downward- 1y in the housing 20, and through an opening formed in theguide tube 21 so as to connect to'the lower'end of the weight 22. Thecord 24 passes over a pulley 36 and eXtendsdownwardly in the guide tube19 into a housing 37 which is builtaround the window opening 13, thishousing 37 having an opening 38 formedtherein, Slidingpanels 39 and I 40areadapted for movement across theopening 38 so as to close this openingthe cord 24 terminating initwo cords 41 and-42, each cord 41 passesaround the pulley .44fandis connected at its end to a lug 45 formed on'of which passes around the pulley 43. The

47 formed .on the panel 40. .The panel 39 is provided with rollers 49which engage the partition50. The panel 40 is provided with rollers 48.which also engage the upper surface of the partition 50. Partitionmembers 51 and '52 are formed in the housing .37 to provide a runway forrollers which are mounted on the lower ends of the panels 39 and 40.Projecting downwardly from the panel 39 is a lug 53 to which isconnected one end of a cord 54 which connects to the 26 as shown inFig. 1. Connected to a lug 56 extending downwardly from the panel 40.cord 55, this cord 55 connecting to thecord is a cord 57 which alsoconnects to the cord 55, these cords 54 and 57 passing around the pulley58.

Mounted in the housing on a vertically extending support 59 is a shaft60 projecting from one end of which is an arm 61. Projecting from theother end of the shaft 60 and non-parallel to the arm 61 is an arm 62,the outer end 63 of which is formed slightly enlarged and preferablylongitudinal. The arm 61 is connected, as shown in Fig. 1, to the cord26, the housing 20 being provided with a slot 64 in its side wall 65 forpermittmgthe passage of the arm 62 exterior of the housing.

' door 66 is swingably mounted on the wall 11 as a closure for theopening12, this door 66 being provided with an abutment 67 mount- 7 'edthereon. Swingably mounted is an auxiliary door 68 which is adapted toclose over the door 66 to provide a further closure for the opening 12and prevent access to the door 66 from the interior of the building. The

door68 is provided with a housing 69 open at one side, so arranged thatupon a rocking of the arm 62 from the dotted position shown in Fig. 1 tothe position shown in full lines in Fig. 1 to move the door 68 intoclosed position, the portion 63. of the arm 62 riding in engagement withthe inner surface of the door and striking the lower wall 70 of thehousing. 30

The drum 33 is provided with a. ratchet wheel 71 adapted to rotate withthe drum, this ratchet wheel being provided with teeth for engaging theelectrically operated pawl or dog72, a spring 73 serving normally toretain this pawl or dog 1n engagement with the teeth of the ratchetwheel 71. Carried by the drum 33 at the opposite side thereof is aratchet wheel 74 engaging the dog 75 which is normally in engagementwith the teeth of the ratchet wheel 74, the teeth in the ratchet wheel74 being oppositely faced from the v V the teeth in the ratchet wheel 71so that the pawl 75 prevents rotation of the drum in one directionandthe pawl 72 prevents rotation of thedrum in theopposite direction. Inoperation the weight 22 would normally be raised. to the elevatedposition shown in dotted lines in Fig. 1, this moving the arms 61 and 62into the position shown in dotted lines,

permitting the opening of the doors 68 and 67 into the position shown in2. The cords .34 and 26 would then be wound on the drum,

the dog 72 preventing an unwinding of the cords so as to retain theweight in elevated po- I sition. To release the dog 72 I have providedan electrically operated latch mechanism, the

. detail of structure of which is not shown as it is of a well-knowntype and forms no specific part of the presentinvention. This latchmechanism is connected by the wires-76to a press button switch 77 sothat a person behind the partition 14 may, by closing the switch 77,release the dog 7 2 and permit a movement of the weight 22 downwardly inthe guide tube 21. Upon this movement the cords 34 and 26 ratchet wheel74.

' In this way Ihave provided asim'ple mech anism for closing andpositively locking the.

auxiliary door 68 in guarded position. At

the same time that the door 68 moves'into closing position the panels 39and 40 will be drawn across the opening 38 by means of the cords 54 and57. In the reverse operation'the cords 41 and 42 would move theoperative'position. p

While I'have'illustrated and described the preferred form of invention,I do not wish to limit myselfto the precise form of structure shown, butdesiret'o avail myself of such .va-

panelsto in- I riations and modifications as may come with-' in thescope of the appended claims.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is:

1. A device of the class described adapted for use with a swinga bledoor, comprising: a rockably mounted shaft; an arm projecting radiallyoutwardly. from one endzof said shaft; an arm projecting radiallyoutwardly I from the opposite endof said. shaft non parallel to saidfirst mentioned' arm, and

adapted, upon rocking of said shaft, for engaging sa1d door, and inrocking from one position to the other, for forcing said door intoclosed position; means connected to the other arm for rocking saidshaft; and means on sa1d door fo'r'engagmg sa d second mentioned arm andl mlting rocking movement of said shaft in one direction beyond apredetermined degree. I

2. A device of the class described adapted for use with a swingablymounted door, com prising: a rockably'mounted shaft; an-arm projectingradially outwardly from one end wardly from the opposite endof saidshaft non-parallel to said first mentioned arm; 'a wear plate on thefaceofsaid door; an abutof said shaft; an arm projecting radially outmentmember on said wear plate, said second mentioned arm adapted, uponrocking 0f said shaftin 'onedirection, for riding over saidwear plateand forcing said door to closed position, the engagement of said doorwith said abutment-member limiting rocking movement of said shaft insaid direction.

3. A device of the class described adapted for usewith a swingablymounted door, com

prising: a rockably mounted shaft an arm projecting radially outwardlyfrom one end wardly from the opposite end'of said shaft of said shaft anarm projecting radially outi non-parallel to said first mentioned arm; ament of said shaft in said direction; a flexible wear plate on the faceof said door; an abutmember secured to said first mentioned arm; 10 mentmember on said Wear plate, said second and a Weight for moving saidflexible memmentioned arm adapted, upon rocking of said her and rockingsaid shaft in one direction. shaft in one direction, for riding oversaid In testimony whereof I have signed the wear plate and forcing saiddoor to closed poforegoing.

sition, the engagement of said door with said abutment member limitingrocking move- VERNA E. DAVIDSON.

